Blizzard's October 8 development notes say the new City of Dalaran dungeon is available for testing. Because this is beta content, availability and tuning may change before release.
Dungeon creature XP increased
The same update increases experience gained from killing creatures in dungeons by approximately 20%. The notes also address a party XP penalty issue involving higher-level players killing lower-level enemies.
Other notable fixes
- Classic looting behavior was restored, including interaction with creatures that dropped no loot.
- A visual flicker affecting large creatures was fixed.
- A creature behavior issue that could cause unintended long-distance pulls was addressed.
- Players can again swap multiple weapons within the same global cooldown, including macro use cases such as changing from a two-hander to sword and shield.
For leveling or dungeon planning, treat these details as a dated beta snapshot rather than permanent launch values.